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Sorting an UL Class childs using Javascript

I am VERY new to JavaScript. I have looked at several previously answered questions along this line. My HTML is roughly:

<!DOCTYPE html>
<html>
<head>
<style type="text/css">
.skills{
list-style:none;
padding: 0;
margin-bottom: 200px;
}
.skills li{
width: 200px;
float: left;
padding: 0;
 }
 </style>
 </head>
  <body>
  <h2>Skills</h2>
<ul class="skills">
    <li>a</li>
    <li>b</li>
    <li>c</li>
    <li>d</li>
    <li>e</li>
</ul>
  </body>
  </html>

I have tried to use:

 <script type="text/javascript">
   function sortLi()
    {
      var skills = [getElementsbyTagName("li")];
      skills.sort();
          var x=document.getElementsByTagName("li");
              x.innerHTML=skills;
     }
  </script>

and by swapping .getElementsbyTagName with .getElementsbyClass("skills") to no avail. I know that I am doing something wrong but just can't put my finger on it.

Check out this solution (here is a link at jsfiddle.)

var mylist = $('.skills');
var listitems = mylist.children('li').get();
listitems.sort(function(a, b) {
    return $(a).text().toUpperCase().localeCompare($(b).text().toUpperCase());
})
$.each(listitems, function(idx, itm) {
    mylist.append(itm);
});​

This uses jQuery and is almost wholly lifted from another Stackoverflow answer.

Basically you have some syntax errors, you don't call your code, etc. Take a look at how the working solution I've linked to at jsfiddle functions and see if that helps.

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